A Siberian snake with overlapping depolarizing resonances

Journal Article · Mon Apr 26 00:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.70.2557· OSTI ID:6780830

Baiod, R; Chu, C M; Courant, E D; Derbenev, Y S; Duryea, J; Koulsha, A V; Krisch, A D; Minty, M G; Nurushev, T S; Phelps, R A; Shoumkin, D S; Wong, V K ^[1]; Caussyn, D D; Lee, S Y; Rinckel, T; Sperisen, F; Stephenson, E J; von Przewoski, B ^[2]; Ohmori, C; Pancella, P V ; Ratner, L G; Wienands, U ^[3]

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1. Randall Laboratory of Physics, University of Michigan, Ann Arbor, Michigan 48109-1120 (United States)
2. Indiana University Cyclotron Facility, Bloomington, Indiana 47408-0768 (United States)
3. University of Tokyo, Tokyo, Japan and Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States) Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008 (United States) AGS Department, Brookhaven National Laboratory, Upton, New York 11973 (United States) TRIUMF, Vancouver, British Columbia, V6T2A3 (Canada)

The behavior of overlapping'' depolarizing resonances was studied using a stored 106.4-MeV polarized proton beam. We used an rf solenoid magnet to create an rf induced'' depolarizing resonance which was then forced to overlap with the [ital G][gamma]=2 imperfection depolarizing resonance. We found significant interactions between the two resonances by varying their frequencies and strengths; the frequency of the rf resonance strongly affected the response of the imperfection resonance to correction magnetic fields. The Siberian snake overcame all observable depolarization due to the overlapping resonances and maintained full polarization for all observed frequencies and strengths.

• OSTI ID: 6780830
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:17; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATION
BEAMS
COUPLING
DATA
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELEMENTS
EQUIPMENT
EXPERIMENTAL DATA
INFORMATION
MAGNETS
METALS
NUCLEON BEAMS
NUMERICAL DATA
ORIENTATION
PARTICLE BEAMS
PROTON BEAMS
RARE EARTHS
RESONANCE
RF SYSTEMS
SOLENOIDS
SPIN ORIENTATION
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
THULIUM